You won’t feel cramped or hemmed in aboard the JetStar. Even on long trips, big active men find plenty of room for comfort on this largest of corporate jets. There’s space, too, for the tables, desks and lounge furnishings you choose, or for 10 airline-type passenger seats. And more room for galley, private lavatory, separate pilot’s flight deck and a generous amount of baggage.

With all this space, with the smoothest pressurization and all-climate air-conditioning, you might forget that the JetStar still is a compact jetliner. Yet emphatically it is. It lands at hundreds of U.S. airports where the big jets can’t—uses over 1,100 terminals in this country, hundreds more abroad. So name your destination. JetStar wings you closer to it at speeds up to 550 mph.

You’ll find that peace of mind has been designed into the JetStar: four-engine power and security, a 2,250-mile range, and all of the airline safety features. Remember, the JetStar is not a paper airplane. Its perfor- mance has been proved by 26 million miles of flying. Its eight-year reliability record is unmatched.

Obviously, the JetStar costs more than smaller jets. But a lot more goes into it. No wonder the few resales made so far have brought more than their original purchase price.

It seems strange that a business jet should have four engines in these days when big airliners have only two. Even in 1965, there were lots of full-sized airliners with only three engines, such as the TriStar, the Trident and the DC-10.

The Jetstar used turbojets, not the more modern turbofans. (Turbofans have a larger diameter; their ducted-fan blades provide a portion of the thrust like a propeller.) The aircraft was quite heavy at about 42500 pounds. According to WikiPedia, the prototypes had two British TJs, but when the deal fell through, Lockheed went with four Pratt TJs.

That wing tank was necessary because TJs are not fuel-efficient. TFs are far more efficient in the speed range of commercial and business jets.

TJs are also very noisy compared with fans; many of the older military aircraft used TJs. (Ever hear an F4 Phantom make a high-speed pass at an airshow?)

After the 1970s, TFs began replacing TJs due to noise, pollution, and fuel-efficiency concerns.

Seeing a portable typewriter, instead of a laptop computer, in the picture reminds me of how far we have come in one technology, even though we still fly around by burning oil and pushing air. No antigravity yet!